A novel method for direct measurement of the pKa's of weakly acidic hydrocarbons

1978 ◽  
Vol 43 (9) ◽  
pp. 1812-1813 ◽  
Author(s):  
J. O. Stoffer ◽  
D. R. Strait ◽  
D. L. Filger ◽  
E. T. Lloyd ◽  
C. Crain
Keyword(s):  
Direct Measurement ◽  
Novel Method

scholarly journals Novel Method for the Direct Measurement of the τ Lepton Dipole Moments

2019 ◽  
Vol 123 (1) ◽  
Author(s):  
J. Fu ◽  
M. A. Giorgi ◽  
L. Henry ◽  
D. Marangotto ◽  
F. Martínez Vidal ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Dipole Moments ◽  
Novel Method

A novel method for the direct measurement of urinary conjugated metabolites of α-tocopherol and its use in diabetes

2010 ◽  
Vol 54 (5) ◽  
pp. 599-600 ◽  
Author(s):  
Gayatri Sharma ◽  
David Muller ◽  
Stephen O'Riordan ◽  
Sinead Bryan ◽  
Peter Hindmarsh ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Novel Method ◽  
Conjugated Metabolites

scholarly journals A novel method for direct measurement of complement convertases activity in human serum

2014 ◽  
Vol 178 (1) ◽  
pp. 142-153 ◽  
Author(s):  
A. M. Blom ◽  
E. B. Volokhina ◽  
V. Fransson ◽  
P. Strömberg ◽  
L. Berghard ◽  
...  
Keyword(s):  
Human Serum ◽  
Direct Measurement ◽  
Novel Method

scholarly journals An empirical approach to the extragalactic background light from AEGIS galaxy SED-type fractions

2011 ◽  
Vol 7 (S284) ◽  
pp. 442-445
Author(s):  
Alberto Domínguez
Keyword(s):  
Galaxy Evolution ◽  
Direct Measurement ◽  
Spectral Energy ◽  
Intensity Level ◽  
Energy Distributions ◽  
Extragalactic Background Light ◽  
Background Light ◽  
Luminosity Functions ◽  
Novel Method ◽  
Γ Ray

AbstractThe extragalactic background light (EBL) is of fundamental importance both for understanding the entire process of galaxy evolution and for γ-ray astronomy. However, the overall spectrum of the EBL between 0.1 and 1000 μm has never been determined directly, neither from observed luminosity functions (LFs), over a wide redshift range, nor from any multiwavelength observation of galaxy spectral energy distributions (SEDs). The evolving overall spectrum of the EBL is derived here utilizing a novel method based on observations only. It is emphasized that the local EBL seems already well constrained from the UV up to the mid-IR. Different independent methodologies such as direct measurement, galaxy counts, γ-ray attenuation and realistic EBL modelings point towards the same EBL intensity level. Therefore, a relevant contribution from Pop III stars to the local EBL seems unlikely.

scholarly journals Evaluation of the Novel Method and the Regression Equation for Calculation of Low-Density Lipoprotein Cholesterol

2015 ◽  
Vol 5 (1) ◽  
pp. 10-14 ◽  
Author(s):  
Muhammad Saiedullah ◽  
Nasreen Chowdhury ◽  
Md Aminul Haque Khan
Keyword(s):  
Direct Measurement ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Low Density ◽  
The Novel ◽  
Low Density Lipoprotein Cholesterol ◽  
Mean Values ◽  
Novel Method ◽  
Bangladeshi Population

Background: Friedewald’s formula (FF) is used worldwide to calculate low-density lipoprotein cholesterol (LDL-chol). But it has several shortcomings: overestimation at lower triglyceride (TG) concentrations and underestimation at higher concentrations. In FF, TG to very low-density lipoprotein cholesterol (VLDL-chol) ratio (TG/VLDL-chol) is considered as constant, but practically it is not a fixed value. Recently, by analyzing lipid profiles in a large population, continuously adjustable values of TG/VLDL-chol were used to derive a novel method (NM) for the calculation of LDL-chol. Objective: The aim of this study was to evaluate the performance of the novel method compared with direct measurement and regression equation (RE) developed for Bangladeshi population. Materials and Methods: In this cross-sectional comparative study we used lipid profiles of 955 adult Bangladeshi subjects. Total cholesterol (TC), TG, HDL-chol and LDL-chol were measured by direct methods using automation. LDL-chol was also calculated by NM and RE. LDL-chol calculated by NM and RE were compared with measured LDL-chol by twotailed paired t test, Pearson’s correlation test, bias against measured LDL-chol by Bland-Altman test, accuracy within ±5% and ±12% of measured LDL-chol and by inter-rater agreements with measured LDL-chol at different cut-off values. Results: The mean values of LDL-chol were 110.7 ± 32.0 mg/dL for direct measurement, 111.9 ± 34.8 mg/dL for NM and 113.2 ± 31.7 mg/dL for RE. Mean values of calculated LDL-chol by both NM and RE differed from that of measured LDL-chol (p<0.01 for NM and p<0.0001 for RE). The correlation coefficients of calculated LDL-chol values with measured LDL-chol were 0.944 (p<0.0001) for NM and 0.945 (p<0.0001) for RE. Bland- Altman plots showed good agreement between calculated and measured LDL-chol. Accuracy within ±5% of measured LDL-chol was 49% for NM, 46% for RE and within ±12% of measured LDL-chol was 79% for both NM and RE. Inter-rater agreements (?) between calculated and measured LDL-chol at LDL-chol <100 mg/dL, 100–130 mg/dL and >130 mg/dL were 0.816 vs 0.815, 0.637 vs 0.649 and 0.791 vs 0.791 for NM and RE respectively. Conclusion: This study reveals that NM and RE developed for Bangladeshi population have similar performance and can be used for the calculation of LDL-chol. DOI: http://dx.doi.org/10.3329/jemc.v5i1.21491 J Enam Med Col 2015; 5(1): 10-14

Mid-infrared spectroscopy beyond the diffraction limit via direct measurement of the photothermal effect

Nanoscale ◽  
2015 ◽  
Vol 7 (42) ◽  
pp. 17637-17641 ◽  
Author(s):  
A. M. Katzenmeyer ◽  
G. Holland ◽  
J. Chae ◽  
A. Band ◽  
K. Kjoller ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Infrared Spectroscopy ◽  
Chemical Composition ◽  
Direct Measurement ◽  
Thermal Infrared ◽  
Diffraction Limit ◽  
Photothermal Effect ◽  
Mid Infrared ◽  
Mid Infrared Spectroscopy ◽  
Novel Method

Scanning thermal infrared microscopy (STIRM) is a novel method that provides the chemical composition and thermal conductivity information with nanoscale resolution.

Novel Method for Direct Measurement of Air Gap Anomalies in Direct-Drive Electrical Motors

2020 ◽  
Vol 67 (3) ◽  
pp. 2422-2429 ◽  
Author(s):  
Jernej Herman ◽  
Samo Begus ◽  
Polona Mihalic ◽  
Jovan Bojkovski
Keyword(s):  
Direct Measurement ◽  
Air Gap ◽  
Direct Drive ◽  
Novel Method ◽  
Electrical Motors

A novel method for direct measurement of optical fluence of focused laser energy in ex-vivo skin

2020 ◽  
Author(s):  
Rajender Katkam ◽  
Tania To ◽  
Matthew Hibert ◽  
Patrick Shaughnessy ◽  
Irina Erengurg ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Laser Energy ◽  
Ex Vivo ◽  
Novel Method

scholarly journals Constraining the Einstein equivalence principle with multi-wavelength observations of polarized blazars

2020 ◽  
Vol 493 (2) ◽  
pp. 1782-1787 ◽  
Author(s):  
Shuang-Xi Yi ◽  
Yuan-Chuan Zou ◽  
Xuan Yang ◽  
Bin Liao ◽  
Shao-Wen Wei
Keyword(s):  
Markov Chain ◽  
Direct Measurement ◽  
Faraday Rotation ◽  
Equivalence Principle ◽  
Radio Observations ◽  
Polarization Data ◽  
Upper Limits ◽  
Multi Wavelength ◽  
Novel Method ◽  
Rotation Behaviour

ABSTRACT In this paper, we present a novel method to test the Einstein equivalence principle (EEP) using (simultaneous) multi-wavelength radio observations of polarized blazars. We analyse simultaneous multi-wavelength polarization observations of 3C 279 at 22, 43, and 86 GHz obtained by two antennas of the Korean VLBI Network. We obtained 15 groups of polarization data, and applied the Metropolis–Hastings Markov chain (MHMC) to simulate the parameters when considering the EEP effect and the simplest form of Faraday rotation (single external Faraday screen). The final results show the constraint of the parametrized post-Newtonian (PPN) parameter γ discrepancy as Δγp = (1.91 ± 0.34) × 10−20. However, the single external Faraday screen is an oversimplification for blazars because there are numerous observations showing complex Faraday rotation behaviour for blazars due to internal/external Faraday dispersion, beam depolarization, etc. The Δγp results of this paper can only be considered as upper limits. Only if all other effects are revealed and considered should the result be taken as a direct measurement of the violation of the EEP.

ChemInform Abstract: A NOVEL METHOD FOR DIRECT MEASUREMENT OF THE PKA′S OF WEAKLY ACIDIC HYDROCARBONS

1978 ◽  
Vol 9 (37) ◽  
Author(s):  
J. O. STOFFER ◽  
D. R. STRAIT ◽  
D. L. FILGER ◽  
E. T. LLOYD ◽  
C. CRAIN
Keyword(s):  
Direct Measurement ◽  
Novel Method
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